Azido-PEG-NHS ester
Azido-PEG-NHS Ester is a heterobifunctional PEG reagent, also known as an NHS-activated azido-PEG, featuring an azide group for click chemistry and an NHS ester for efficient amine coupling. The NHS ester enables immediate reaction with primary amines under mild conditions, while the azide allows subsequent bioorthogonal cycloaddition with alkynes. Azido-PEG-NHS Ester reagents are ideal for sequential bioconjugation in protein labeling, surface modification, and biomaterial fabrication.
